setgroups type mismatches on Solaris

[gco]

Building Rust 1.67.0 on Solaris x64, there's a typo from issue #1394 in the list of operating systems above this and illumos is included twice, one of them needs to be solaris.

error[E0308]: mismatched types
    --> /pool/projects/rust/rust-1.67.0/.cargo/registry/src/github.com-1ecc6299db9ec823/nix-0.22.3/src/unistd.rs:1497:25
     |
1497 |         libc::setgroups(groups.len() as setgroups_ngroups_t, groups.as_ptr() as *const gid_t)
     |         --------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `usize`
     |         |
     |         arguments to this function are incorrect
     |
note: function defined here
    --> /pool/projects/rust/rust-1.67.0/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.135/src/unix/solarish/mod.rs:2727:12
     |
2727 |     pub fn setgroups(ngroups: ::c_int, ptr: *const ::gid_t) -> ::c_int;
     |            ^^^^^^^^^
help: you can convert a `usize` to an `i32` and panic if the converted value doesn't fit
     |
1497 |         libc::setgroups((groups.len() as setgroups_ngroups_t).try_into().unwrap(), groups.as_ptr() as *const gid_t)
     |                         +                                   +++++++++++++++++++++

[asomers]

Sounds easy enough to fix. Care to submit a patch?

[SteveLauC]

Close as this was completed in #1991